Virus, not strep?: The large majority of pharyngitis (sore throat) is viral, and no antibiotic works against viruses. Lack of improvement on levofloxacin (Levaquin®) is evidence it wasn't strep to begin with, or that it was strep plus a virus. This should continue to clear up on its own. Check with your doctor if it continues more than another few days.
Answered 6/6/2019
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